Loading...
Loading...
Mazda CX-7 Downstream Oxygen Sensor 234-4466 L556-18-861, precisely matches original factory, monitors exhaust oxygen content, optimizes combustion and emissions.
Replaces OEM #
MOQ
1件
| Vehicle Model / Generation | Year | Engine | Specification |
|---|---|---|---|
| Cx 7 | — | — | — |
Mazda CX-7 downstream oxygen sensor (OEM L556-18-861, L556-18-861A, and 234-4466) installed behind the catalytic converter; monitors exhaust purification efficiency and feeds ECU to adjust air-fuel ratio. Specifically matches Mazda CX-7 2.3T and 2.5L variants. Installation difficulty medium; ~30-45 minutes; use a dedicated socket for removal. If check engine light on, fuel consumption increases, or acceleration is weak, sensor signal or heater element may be faulty; replace to restore performance.
马自达CX-7 下游氧传感器 234-4466 L556-18-861 精准匹配
CX-7